org.apache.poi.poifs.crypt.cryptoapi

Class CryptoAPIEncryptionHeader

java.lang.Object

org.apache.poi.poifs.crypt.EncryptionHeader

org.apache.poi.poifs.crypt.standard.StandardEncryptionHeader

org.apache.poi.poifs.crypt.cryptoapi.CryptoAPIEncryptionHeader

All Implemented Interfaces:

Duplicatable, GenericRecord, EncryptionRecord

public class CryptoAPIEncryptionHeader
extends StandardEncryptionHeader

Field Summary

Fields inherited from class org.apache.poi.poifs.crypt.EncryptionHeader

ALGORITHM_AES_128, ALGORITHM_AES_192, ALGORITHM_AES_256, ALGORITHM_RC4, HASH_NONE, HASH_SHA1, HASH_SHA256, HASH_SHA384, HASH_SHA512, MODE_CBC, MODE_CFB, MODE_ECB, PROVIDER_AES, PROVIDER_RC4

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	CryptoAPIEncryptionHeader(CipherAlgorithm cipherAlgorithm, HashAlgorithm hashAlgorithm, int keyBits, int blockSize, ChainingMode chainingMode)
protected	CryptoAPIEncryptionHeader(CryptoAPIEncryptionHeader other)
	CryptoAPIEncryptionHeader(LittleEndianInput is)

Method Summary

Modifier and Type	Method and Description
CryptoAPIEncryptionHeader	copy()
void	setKeySize(int keyBits) Sets the keySize (in bits).

Methods inherited from class org.apache.poi.poifs.crypt.standard.StandardEncryptionHeader

write

Methods inherited from class org.apache.poi.poifs.crypt.EncryptionHeader

getBlockSize, getChainingMode, getCipherAlgorithm, getCipherProvider, getCspName, getFlags, getGenericProperties, getHashAlgorithm, getKeySalt, getKeySize, getSizeExtra, setBlockSize, setChainingMode, setCipherAlgorithm, setCipherProvider, setCspName, setFlags, setHashAlgorithm, setKeySalt, setSizeExtra

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.poi.common.usermodel.GenericRecord

getGenericChildren, getGenericRecordType

Constructor Detail

CryptoAPIEncryptionHeader

public CryptoAPIEncryptionHeader(LittleEndianInput is)
                          throws java.io.IOException

Throws:

java.io.IOException

CryptoAPIEncryptionHeader

protected CryptoAPIEncryptionHeader(CryptoAPIEncryptionHeader other)

CryptoAPIEncryptionHeader

protected CryptoAPIEncryptionHeader(CipherAlgorithm cipherAlgorithm,
                                    HashAlgorithm hashAlgorithm,
                                    int keyBits,
                                    int blockSize,
                                    ChainingMode chainingMode)

Method Detail

setKeySize

public void setKeySize(int keyBits)

Description copied from class: EncryptionHeader

Sets the keySize (in bits). Before calling this method, make sure to set the cipherAlgorithm, as the amount of keyBits gets validated against the list of allowed keyBits of the corresponding cipherAlgorithm

Overrides:

setKeySize in class EncryptionHeader

copy

public CryptoAPIEncryptionHeader copy()

Specified by:

copy in interface Duplicatable

Overrides:

copy in class StandardEncryptionHeader

Returns:

a deep copy of the implementing class / instance